{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "RNA", "cell type", "cell line"], "input": "In this study we investigated the mechanisms whereby anti-CD2 antibodies stimulate viral production ."}
{"protein": ["anti-CD2 antibodies"], "DNA": [], "RNA": [], "cell type": [], "cell line": []}